Fire extinguisher



July 1, 1930. w. B. BRONANDER 1,769,618

I FIRE EXTINGUISHER Filed April 18, 1927 2 Sheets-Sheet 1 INVENTORJV/l/Ie /m B. Bram: nder- A'lTORN Y3 July 1, 1930. w. B. BRONANDER FIREEXT INGUISHER Filed April 18 1927 2 Sh eets-Sheet 2 INVENTOR lV/Me/m B.Bronander BY M ATTO NEY5 WHMMH. MH HHHMWwmmflmmAHHWM HH UH 7 W0 0 M 7Patented July 1, 1930 PATENT OFFICE.

'WILHELM IB. BRONANZDER, Olli MONTCLAIR, NEW JERSEY FIRE nx'rmeursnnnApplication filed April 18,

This invention relates to fire extinguishers.

More particularly stated, the invention re-- lates to a fireextinguisher so constructed that it will automatically release fireextinguishing fluid in case of fire or can be manually manipulated toeject the fluid on the fire.

The invention-has for its salient object to provide a simple andpractical extinguisher of the type specified that can be manuallyoperated or will operate automatically to reiISeIase the fireextinguishing fluid in case of Another object of the invention is toprovide an extinguisher of the manually operabletype having a containerso constructed and arranged that the user can see at a glance whetherthere is a supply of fire extinguish ing fluid therein. 1

Another object of the invention is to-provide an extinguisher soconstructed and arranged that the stream of fire extinguishing fluid canbe directed by the user of the device.

Further objects of the invention will apear from the followingspecification taken 1n" connection with the drawings, which form a partof this application, and in which 1 Fig. 1 is a sectional elevation ofone form of fire extinguisher and support constructed infaccordance withthe invention;

Fig.2 is a 'top plan view of Fig. 1;

Fig. 3 is a view similar to Fig. 1, but illus- I tratinganother form ofthe invention; 1

Fig. 4 is a sectional elevation of another type of extinguisherconstructed in accordance with the invention; g 9 Fig. 5 is a sectionalelevation of another type of extin 'sher constructed inaccordance withthe invention.

The invention briefly desdribed consists of a fire extinguisher having acontainer formed of transparent frangible mater1al,.such as 1927. Serialin. 184,510.

glass. A cap is secured to the upper end of the container and a pump ofsuitable construction is carried by the cap.

In one form of the invention the fluid is I pumped out through thehandle of the pump and in another form of the invention a nozzle isformed on or secured to the cap.

Various forms of pumps are illustrated. In some of the forms, the liquidis forced out by air which is pumped into the container andin otherforms, the liquid is forced out directly by the pump piston. Eitherdoubleacting or single-actlng pumps may be used.

The frangible container is supported on a bracket or base or back plateby fusible means so that in case of fire, the container will be releasedand will drop and break, thus releasing the fire extinguishing liquid.

Further details of the invention will ap pear from the followingdescription. In the form of the invention illustrated in Fig. 1, thereis shown a container or receptacle 10 formed of transparent frangiblemate'rial, such as glass. The container has a neck 11 which terminatesin an annular flange 7 or shoulder 12. A threaded collar or band 13 issecured around the neck'below the annular shoulder or flange. The collarmay be split if desired tofacilitate the mounting of the collar on theneck. A cap or closure member 75.

1a is mounted on the neck and engages the collar. i The cap 15 has aninwardly extending apertured boss 16 formed thereon which extends intothe neck of the bottle and has secured so thereto an elongated cylinder17. Packing 18 may be interposed between the capv and the outer-end ofthe neck.

Ahollow piston. rod 20 is slidably mounted in the aperture 21 in theboss 16 and extends down into the cylinder 17, apiston 23 being securedto the-lower end thereof. a

The cylinder 17 base port 25 at its lower end controlled by a. ballcheck valve 26. A handle 30 having a sleeve 31 is secured to the formedin the handle.

' rod 20.

. oft ecylinder.

It will be obvious to those skilled in the art that the reciprocation ofthe, piston in the cylinder will cause the fire extinguishing fluid tobe discharged through the hollow piston rod and discharge opening 33 inthe handle 30 and the stream of fluid can be directed as desired at thefire.

As above stated, the container or receptacle 10 is formed of frangiblematerial and it is referable to so mount the extinguisher that 1n theevent there is no one at hand to operate the extinguisher in case offire, the extinguisher will automatically drop and break,

thus releasing the first extinguishing fluid. In orderto provide forsuch emergencies, the extinguisher is preferably supported on arms 40and 41 of a fork-shaped support 42. Each of the arms has formed ad acentits outer end, a notch 43 adapted to receive studs 44 which are formedon or secured to and project laterally from the cap 15.

The fork-shaped member 42 is pivoted at 45 to lugs 46. The member 42 issupported by a fusible link 47 secured at 48 to the member 42 andsecured at 49 to a back plate 50.

The lugs 46 are carried by the back plate 50 which is provided with abifurcated extension 51 having arms 52 which embrace or extend onopposite sides of the container, thus stabilizing the container andpreventing acci dental release thereof from the support. It will beobvious that when the fusible link 47 melts, the support 42 will drop onits pivot 45, thus releasing the fire extinguisher.

The form of the invention illustrated in Fi 3 is similar to that alreadydescribed but di ers therefrom in that the discharge opening or nozzle55 is formed on and extends laterally from the cap 56. The nozzle 55communicates with a discharge port 57 formed in the boss 58 whichcorresponds to the boss 16 above described. t

In the embodiment: of the invention shown in Fi 4 the extinguishercomprises a cylindrica tubular body member having a me tallic cap 66secured to one end thereof and a metallic cap 67 secured to the otherend thereof, packin .68 being interposed between the ca 5 and t e endsof the tubular member 65.

. he cap 66 carries a cylinder 70 which ex tends throughout the lengthof the tubular member 65 and is secured tothe cap 67 by a plu 71 whichis threaded A collar 72 fixed in the 'cylin der 70 a central opening orort 73 communicating with the interior 0 the cylinder and also into thelower end the hollow piston rod is adapted to communicate with a conduit88 formed in a handle 89 secured to the top of the piston rod. A ballcheck valve 90 controlled bya spring 91 is mounted in the handleintermediate the conduit 88 and the upper end of the piston rod 85.

A conduit 95 is securedto the outer surface of the cylinder 70 andextends upwardly through the cap 66 and has connected to its outer end anozzle 96. A control valve 97 is provided for regulating the streampassing through the nozzle. A check valve 98 is preferably provided atthe inlet end of the tube 95 to prevent air from entering the conta-iner65 through the tube 95.

In the form of the invention illustrated in Fig. 4, the reciprocation ofthe piston rod 85 will cause air to be forced into the cylinder 65through the hollow piston rod,port

73, space 74 and openings 80. On the up' stroke of the piston red, thecylinder 70 will receive air through the handle and the hollow pistonrod and on the down-stroke of the piston, this air will be forced intothe tubular body member'65 and Will in turn eject the fire extinguishingfluid from the extinguisher.

In the form of the invention illustrated in Fig.5, a container 100formed of glass or other suitable material has secured to the upper endthereof, a cap 101 preferably formed of metal." The cap 101 has a boss.

102 formed thereon to which is secured a cylinder 103- having a ballcheck valve 104 controlling a port 105 at the inner end of the cylinder.Apiston rod106 is reciprocably mounted in the boss 102 and has a piston107 secured to one end thereof. The piston has a plurality of openings.110 therethrough controlled by downwardly seating ball'check valves 111.

the. cross sectional area of the piston rod 106 will be equal to thecross sectional area of the cylinder 103 minus the cross section ofdirect a stream of fluid on a fire or will opthe piston rod, or in otherwords, the cross sectional area of the piston rod equals the area of thespace in the cylinder 103 around the piston rod. This being true, thearea of the cylinder below the piston is equal to twice the area of thespace between the piston rod and cylinder above the piston. Therefore,when the piston is drawn upwardly in the cylinder, twice the volume ofliquid will be drawn into the cylinder that can be expelled on thedown-stroke of the piston. Since 0;

half of the liquid in the cylinder will be forced out on thedown-stroke, it is evident that each strokeof the piston in eitherdirection will force liquid out of the cylinder. Thus, the pump will beunderstood that the cap 66 in Fig. 4-. and cap 101 in Fig. 5 areprovided with lugs similar to the lugs 44 in Fig. 2 whereby theextinguisher can be supported in a bracket From the foregoingdescription it will be evident that a simple and practical form of fireextinguisher has been'designed and that the extinguisher can be operatedby hand to erate automatically in case a fire occurs when there is 'noone ,guisher.

Although certain specific embodiments of the invention have beenparticularly shown will be double-acting. It-

present to operate the extin- In witness whereof, I havehereunto set myhand this 31st day of March, 1927.

'WILHELM B. BRONANDER.

and described, it will be understood that the invention is capable ofmodification and that changes in the construction and in the arrangementof the various cooperating parts may be made without departing from thespirit or scope of the invention, as expressed in the following claims.v

What I claim is: 1. In combination, a frangible receptacle,

a pump therein for discharging liquid therethrough, and meansincluding afusible element for supporting said receptacle, the receptacle beingreleasable from the supporting means when. the fusible element givesway.

2. In combination, a bracket, a support pivoted thereon and adapted toswing downwardly, a fusible link connected to said sup ort and to saidbracket for holding the support against pivotal movement relative to thebracket, .and a frangible container supported by said support andreleasable therefrom when the support swings downwardly. 3. Incombination, a plate, pivot lugs there-' on, a supporting member pivotedon said lugs and adapted to swing downwardly, a frangible containersupported by said member and releasable therefrom as the su port swingsdownwardly, and a' fusible lin said supporting member to said plate forconnecting i holding said member against pivotal move;

ment on saidpivot lugs.

4. In combination, a bracket, a support pivoted thereon, a fusible linkconnected to said

